6 mo and still tingling in the foot....

This Tuesday it is 6mo since my microdiscectomy l-4-5. I am currently on a steroid pack for a flare up. I'm not sure it's doing anything.I also have tingling in my left foot still which I'm not sure is not nerve damage at this point. I also can feel the sciatica in both butt cheeks

Is it normal to still have pain and nerve tingling?